CN215486287U

CN215486287U - Sealing structure of throttle valve body of motorcycle

Info

Publication number: CN215486287U
Application number: CN202122029986.3U
Authority: CN
Inventors: 邓富盛
Original assignee: Chongqing Pingshan TK Carburettor Co Ltd
Current assignee: Chongqing Pingshan TK Carburettor Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-11
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to the field of transmission device parts, in particular to a sealing structure of a motorcycle throttle body, a throttle shaft is rotatably arranged in a through hole to control the opening and closing angle of a valve, a thrust spring is arranged between a shell and the throttle shaft, the throttle shaft can be tightened through the thrust spring to keep sealing, a sealing assembly comprises a retaining ring for a shaft, a sliding gasket and a stop gasket, the stop gasket is arranged in an installation seat, the retaining ring for the shaft is clamped on the throttle shaft and is positioned at one side of the stop gasket, the sliding gasket is arranged between the retaining ring for the shaft and the stop gasket, the position of the sliding gasket is limited through the stop gasket, firstly, the stop gasket has better wear resistance relative to an aluminum alloy material of the shell, the shell cannot be rubbed, and in addition, the wear resistance can be improved through the frictional rotation of the stop gasket and the sliding gasket, making the lifetime of the device higher.

Description

Sealing structure of throttle valve body of motorcycle

Technical Field

The utility model relates to the field of transmission device parts, in particular to a sealing structure of a throttle valve body of a motorcycle.

Background

A throttle body assembly for a motorcycle developed from a carburetor is generally additionally provided with a throttle opening position sensor, and in order to ensure vibration resistance of the opening sensor, it is generally necessary to increase an axial thrust of a throttle spring.

The problem that prior art exists is that by the assembly deformation of split retaining ring to and the adhesion influence of the wearing and tearing dust of retaining ring and slip packing ring, the split retaining ring is not totally at the slip packing ring slip. Even in the later stage of actuation, the sliding washer can rotate along with the split washer, the sliding function is lost, and therefore sliding friction is generated between the sliding washer and the aluminum alloy body which is not wear-resistant. When the body is seriously worn, the throttle shaft can drive the throttle valve plate to move towards the thrust direction, the throttle valve plate is blocked, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing structure of a throttle valve body of a motorcycle, and aims to solve the problem that the service life of the existing throttle valve structure is shortened due to easy abrasion.

In order to achieve the purpose, the utility model provides a sealing structure of a motorcycle throttle body, which comprises a throttle body and a sealing assembly, wherein the throttle body comprises a shell, a thrust spring, a throttle shaft and a mounting seat, the shell is provided with a through hole, the mounting seat is arranged at one side of the through hole, the throttle shaft is rotatably arranged in the through hole, the thrust spring is arranged between the shell and the throttle shaft, the sealing assembly comprises a shaft check ring, a sliding gasket and a stop gasket, the stop gasket is arranged in the mounting seat, the shaft check ring is clamped on the throttle shaft and is positioned at one side of the stop gasket, and the sliding gasket is arranged between the shaft check ring and the stop gasket.

The mounting seat is provided with a mounting groove, the stop washer is provided with a limiting piece, and the limiting piece is positioned in the mounting groove.

The position of the limiting piece is limited through the mounting groove.

The shaft retainer ring has a mounting opening, and the mounting opening is engaged with the throttle shaft.

The shaft check ring is conveniently arranged on the throttle shaft through the mounting opening.

Wherein the seal assembly further comprises a layer of grease disposed between the stop washer and the slip washer.

The grease layer reduces the frictional force of the brake washer and the sliding washer, so that the service life can be increased.

Wherein, seal assembly still includes the sealing washer, the sealing washer sets up throttle shaft with between the shell.

The sealing performance is improved by the sealing ring.

The utility model relates to a sealing structure of a motorcycle throttle body, wherein a throttle shaft is rotatably arranged in a through hole, so that the throttle shaft can rotate relative to a shell under the action of external force to control the opening and closing angle of a valve, a thrust spring is arranged between the shell and the throttle shaft, the throttle shaft can be tensioned by the thrust spring to maintain sealing, a sealing assembly comprises a shaft retaining ring, a sliding gasket and a stop gasket, the stop gasket is arranged in an installation seat, the shaft retaining ring is clamped on the throttle shaft and positioned at one side of the stop gasket, the sliding gasket is arranged between the shaft retaining ring and the stop gasket, the shaft retaining ring is assembled on the throttle shaft, the position of the sliding gasket is limited by the stop gasket, and firstly, the stop gasket has better wear resistance relative to an aluminum alloy material of the shell, the shell can not be rubbed, and the shell can rotate in a friction mode through the stop washer and the sliding washer, so that the wear resistance is improved, the service life of the device is prolonged, and the problem that the service life of the existing throttle valve structure is shortened due to easy abrasion is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a structural view of a motorcycle throttle body sealing structure of the present invention;

FIG. 2 is a schematic cross-sectional view taken along plane B-B of a motorcycle throttle body sealing structure of the present invention;

FIG. 3 is an enlarged partial view of detail A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along plane A-A of a motorcycle throttle body sealing structure of the present invention;

FIG. 5 is a block diagram of the housing of the present invention;

fig. 6 is a structural view of the shaft retainer, the slide washer, and the stopper washer.

1-a throttle body, 2-a sealing component, 11-a shell, 12-a thrust spring, 13-a throttle shaft, 14-a mounting seat, 21-a retaining ring for the shaft, 22-a sliding gasket, 23-a stop gasket, 24-a lubricating grease layer, 25-a sealing ring, 111-a through hole, 141-a mounting groove, 211-a mounting opening and 231-a limiting sheet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 6, the present invention provides a sealing structure of a throttle body of a motorcycle:

the throttle valve comprises a throttle valve body 1 and a sealing assembly 2, wherein the throttle valve body 1 comprises a shell 11, a thrust spring 12, a throttle shaft 13 and a mounting seat 14, the shell 11 is provided with a through hole 111, the mounting seat 14 is arranged on one side of the through hole 111, the throttle shaft 13 is rotatably arranged in the through hole 111, the thrust spring 12 is arranged between the shell 11 and the throttle shaft 13, the sealing assembly 2 comprises a shaft retainer ring 21, a sliding gasket 22 and a stop gasket 23, the stop gasket 23 is arranged in the mounting seat 14, the shaft retainer ring 21 is clamped on the throttle shaft 13 and is positioned on one side of the stop gasket 23, and the sliding gasket 22 is arranged between the shaft retainer ring 21 and the stop gasket 23.

In the present embodiment, the throttle shaft 13 is rotatably disposed in the through hole 111 so that the throttle shaft 13 can rotate relative to the housing 11 by an external force to control the opening and closing angle of the valve, the thrust spring 12 is disposed between the housing 11 and the throttle shaft 13, the throttle shaft 13 can be pulled by the thrust spring 12 to maintain a seal, the seal assembly 2 includes a shaft retainer 21, a sliding washer 22, and a stopper washer 23, the stopper washer 23 is disposed in the mounting seat 14, the shaft retainer 21 is engaged with the throttle shaft 13 and is located on one side of the stopper washer 23, the sliding washer 22 is disposed between the shaft retainer 21 and the stopper washer 23, is assembled to the throttle shaft 13 by the shaft retainer 21, and limits the position of the sliding washer 22 by the stopper washer 23, firstly, the stop washer 23 has better wear resistance, and in addition, the stop washer 23 and the sliding washer 22 can rotate in a friction mode, so that the wear resistance is improved, and the service life of the device is longer.

Further, the mounting seat 14 has a mounting groove 141, the lock washer 23 has a limiting piece 231, and the limiting piece 231 is located in the mounting groove 141.

In the present embodiment, the stopper piece 231 of the stopper washer is stopped by the mounting groove 141, so that the stopper washer 23 is prevented from rotating together with the slide washer 22, thereby improving the stability of the operation.

Further, the shaft retainer 21 has a mounting opening 211, and the mounting opening 211 is engaged with the throttle shaft 13.

In the present embodiment, the shaft stopper 21 can be more easily engaged with the throttle shaft 13 through the mounting opening 211.

Further, the seal assembly 2 further includes a grease layer 24, and the grease layer 24 is disposed between the stopper washer 23 and the sliding washer 22.

In this embodiment, the wear resistance can be improved again by applying a grease layer 24 between the lock washer 23 and the slide washer.

Further, the seal assembly 2 further comprises a seal ring 25, and the seal ring 25 is disposed between the throttle shaft 13 and the housing 11.

In the present embodiment, the seal ring 25 seals the gap between the throttle shaft 13 and the housing 11, thereby improving the sealing effect.

If the stop washer 23 is used alone, the wear resistance can be improved from 20 ten thousand times of reliable operation of the throttle to 50 ten thousand times; if the sliding gasket is added, the wear resistance can be improved from 50 ten thousand times to 200 ten thousand times by reliably operating the throttle.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A sealing structure of a throttle valve body of a motorcycle is characterized in that,

including throttle valve main part and seal assembly, the throttle valve main part includes shell, thrust spring, throttle shaft and mount pad, the shell has the through-hole, the mount pad sets up one side of through-hole, the throttle shaft rotates to set up in the through-hole, thrust spring sets up the shell with between the throttle shaft, seal assembly includes for the shaft retaining ring, slip washer and lock washer, the lock washer sets up in the mount pad, for the shaft retaining ring block is in on the throttle shaft, and be located one side of lock washer, the slip washer sets up for the shaft retaining ring with between the lock washer.

2. The motorcycle throttle body sealing structure of claim 1,

the mount pad has the mounting groove, the lock washer has spacing piece, spacing piece is located in the mounting groove.

3. The motorcycle throttle body sealing structure of claim 1,

4. The motorcycle throttle body sealing structure of claim 1,

the seal assembly further includes a layer of grease disposed between the stop washer and the slip washer.

5. The motorcycle throttle body sealing structure of claim 1,

the seal assembly further comprises a seal ring disposed between the throttle shaft and the housing.